Conclusion: Nvidia has introduced some impressive innovations in its new single-GPU flagship card, the GeForce GTX 680. Hard-core PC gamers shouldn't expect down-the-board AMD-crushing frame rates, but reduced power bills are a distinct possibility.
Pros: Amazingly power efficient. Excellent performance. Reduced profile. Supports four monitors, 3D Vision Surround on one card. Requires only six-pin PCIe power connectors.
Cons: Not always appreciably faster than competing AMD card. Blocks an expansion slot. Requires a hefty power supply.
Excerpt: Nvidia's premier single-core graphics card for the GeForce GTX 600 series is the sleek and powerful GTX 680. At first glance, the GTX 680 looks much like any high-end graphics card, but what is inside packs a punch and makes it our TopTenREVIEWS Bronze Award winner.
Pros: This card has a 1GHz base clock speed, has a high memory bandwidth and runs games effortlessly on high and ultra settings.
Cons: The GTX 680 is a long card and only has one HDMI connection.
Conclusion: But if you're shopping for a gaming card in the $500 price range for your multi-screen setup or to drive your big 30-inch monitor, the GTX 680 is our favorite pick—at least, until the next impressive high-end card comes along. AMD, the card's in your court.
Pros: Bests AMD's Radeon HD 7970 on most tests while using less power, Dynamic core clock speed helps card adapt to different games and tasks, Priced below AMD's competing card, Supports four monitors
Cons: Still pricey, Less onboard memory than comparable AMD cards
Summary: At last the patience of beautiful graphics fans has been rewarded: Nvidia has finally rolled out their response to AMD’s “Tahiti”. And today we are proud to present a new GK104 graphics processor on “Kepler” architecture and the first graphics card based on it.
Conclusion: : the GeForce GTX 680 (Kepler GK104) is the Fermi architecture polished to a mirror finish. It is the best high-end GPU available right now, dethroning the AMD Radeon HD 7970 in the process.
GeForce GTX 680 - NVIDIA's 28nm Successor to Fermi
22 March 2012
Excerpt: Since Kepler was made known in October 2010, we have waited with bated breath for its arrival. Its manifestation in the form of a NVIDIA GeForce GTX 680 graphics card reached our offices and has managed very interesting performance results with its new architecture. Read on!
Pros: Excellent all-round performance, Extremely quiet for a flagship card, GPU Boost in Kepler architecture
Cons: Temperature and power consumption wasn't low but was justified with GPU boost
Summary: NVIDIA clearly has a winner on their hands with the GTX 680. The new card, which is based on NVIDIA's GK104 graphics processor, that introduces the Kepler architecture, is a significant leap forward both in terms of performance and GPU technology. Technically GK104, as its name reveals is an upper mid-range GPU, not a pure high-end part. Following NVIDIA's naming convention such a chip would be called GK100.
Pros: 16% performance increase over GTX 580, Reasonable price, Massive leap forward in energy efficiency, Dynamic overclocking works well, Good additional OC potential, Native full-size HDMI & DisplayPort output, Adds adaptive VSync and new Anti-Aliasing modes, Up to four active displays now, makes surround possible with one card, Adds support for PCI-Express 3.0 and DirectX 11.1, Support for CUDA and PhysX
Cons: Dynamic OC can't be turned off, Manual overclocking more complicated than before, Noisy in 3D, Voltage controller has no software voltage control neither monitoring, No technology similar to AMD's ZeroCore power, +500 MHz max OC and power limit won't work for extreme overclockers
Excerpt: It's a small class of PC enthusiasts who will spend £419 on a graphics card . It takes pretty demanding situations - perhaps a large high-res monitor or two or a taste for extreme image quality - to make use of that sort of performance. Most modern games run well enough on a graphics card costing half that price. If you're one of those people for whom "well enough" isn't enough, then the GeForce GTX 680 is for you.